The Simpson's are putting a pool in their backyard. The rectangular pool measures 19 ft x 30 ft. The pool will have a sidewalk around it that is 4 ft wide. How
much fencing material will the Simpson's need to purchase to enclose the pool and the
sidewalk?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

27

step-by-step explanation:

hello, never fear papaguy is here!

c. histogram

step-by-step explanation: